2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 const int Signal::LabelHitPadding = 2;
31 Signal::Signal(QString name) :
36 QString Signal::get_name() const
41 void Signal::set_name(QString name)
46 QColor Signal::get_colour() const
51 void Signal::set_colour(QColor colour)
56 void Signal::paint_label(QPainter &p, const QRect &rect, bool hover)
60 const QColor colour = get_colour();
61 const float nominal_offset = get_nominal_offset(rect);
64 const QRectF label_rect = get_label_rect(rect);
67 const QPointF points[] = {
69 label_rect.topRight(),
70 QPointF(rect.right(), nominal_offset),
71 label_rect.bottomRight(),
72 label_rect.bottomLeft()
75 const QPointF highlight_points[] = {
76 QPointF(label_rect.left() + 1, label_rect.top() + 1),
77 QPointF(label_rect.right(), label_rect.top() + 1),
78 QPointF(rect.right() - 1, nominal_offset),
79 QPointF(label_rect.right(), label_rect.bottom() - 1),
80 QPointF(label_rect.left() + 1, label_rect.bottom() - 1)
83 p.setPen(Qt::transparent);
84 p.setBrush(hover ? colour.lighter() : colour);
85 p.drawPolygon(points, countof(points));
87 p.setPen(colour.lighter());
88 p.setBrush(Qt::transparent);
89 p.drawPolygon(highlight_points, countof(highlight_points));
91 p.setPen(colour.darker());
92 p.setBrush(Qt::transparent);
93 p.drawPolygon(points, countof(points));
96 p.setPen((colour.lightness() > 64) ? Qt::black : Qt::white);
97 p.drawText(label_rect, Qt::AlignCenter | Qt::AlignVCenter, _name);
100 bool Signal::pt_in_label_rect(const QRect &rect, const QPoint &point)
102 const QRectF label = get_label_rect(rect);
104 QPointF(label.left() - LabelHitPadding,
105 label.top() - LabelHitPadding),
106 QPointF(rect.right(),
107 label.bottom() + LabelHitPadding)
111 void Signal::compute_text_size(QPainter &p)
113 _text_size = p.boundingRect(QRectF(), 0, _name).size();
116 QRectF Signal::get_label_rect(const QRect &rect)
118 using pv::view::View;
120 const float nominal_offset = get_nominal_offset(rect) + 0.5;
121 const QSizeF label_size(
122 _text_size.width() + View::LabelPadding.width() * 2,
123 _text_size.height() + View::LabelPadding.height() * 2);
124 const float label_arrow_length = label_size.height() / 2;
126 rect.right() - label_arrow_length -
127 label_size.width() - 0.5,
128 nominal_offset - label_size.height() / 2,
129 label_size.width(), label_size.height());